libgui: Add wb_consumer_base_owns_bq flag

This flag will determine whether or not ConsumberBase classes own their
own bufferqueue or not.

Bug: 340933754
Flag: EXEMPT new flag
Test: n/a new flag
Change-Id: Iea1985f7f7c513da0601e5f651436d55aa861853
diff --git a/libs/gui/libgui_flags.aconfig b/libs/gui/libgui_flags.aconfig
index c79a2b7..f269f10 100644
--- a/libs/gui/libgui_flags.aconfig
+++ b/libs/gui/libgui_flags.aconfig
@@ -37,6 +37,14 @@
 } # trace_frame_rate_override
 
 flag {
+  name: "wb_consumer_base_owns_bq"
+  namespace: "core_graphics"
+  description: "ConsumerBase-based classes now own their own bufferqueue"
+  bug: "340933754"
+  is_fixed_read_only: true
+} # wb_consumer_base_owns_bq
+
+flag {
   name: "wb_platform_api_improvements"
   namespace: "core_graphics"
   description: "Simple improvements to Surface and ConsumerBase classes"